Video-ranging offshore platform crane heave compensation control system and method

Abstract

The invention discloses a video-ranging offshore platform crane heave compensation control system and method. The video-ranging offshore platform crane heave compensation control system comprises a control computer, an industrial camera and a direct-pump-controlled electrical-hydraulic heave compensation device, wherein the industrial camera as well as a servo motor driver, a rotating speed sensor, three pressure sensors and a built-in displacement sensor in the direct-pump-controlled electrical-hydraulic heave compensation device are respectively electrically connected with the control computer to carry out information and energy exchange; and the industrial camera and the direct-pump-controlled electrical-hydraulic heave compensation device are respectively arranged on an offshore platform crane base. Three-dimensional location information of a ship is detected through a video ranging method and is transmitted to the control computer to control the direct-pump-controlled electrical-hydraulic heave compensation device, and furthermore the intelligent heave motion compensation of an offshore platform crane is carried out; and the crane is not influenced by the heave motion of a ship body, a load is lifted to leave away from and be stably descended to a deck of a supply ship, and furthermore the intelligent heavy motion compensation realized through lifting and descending of the crane is carried out.

Description

technical field [0001] The invention relates to a crane heave compensation control system and method, in particular to an ocean platform crane heave compensation control system and method using video ranging. Background technique [0002] Since the 21st century, the world's demand for energy has increased day by day, and the ocean has become the focus of the energy strategies of various countries in the new century. Countries all over the world have increased their efforts in ocean development. With the massive development of offshore oil, large-scale offshore projects are also booming, and offshore cranes are one of the key equipment in these projects. [0003] The heave and swing of the hull caused by the wave movement greatly limits the operating capacity of the offshore crane. It will cause equipment damage and personal injury or death. The biggest technical difference between offshore cranes and ground cranes is to eliminate the impact of wave motion on crane operatio...

AI Technical Summary

Problems solved by technology

[0006] At present, for the offshore platform cranes of international and domestic manufacturers, the measure to solve the wave motion is still to configure the constant tension function. The heave compensation technology is not used on a large scale due to the inconvenience of detecting the hull motion under the conditions of the offshore platform cranes, but in fact it is suitable for offshore platforms. For cranes, whether it is the constant tension technology or the existing heave compensation technology, the lifting process of the offshore platform crane can only be unaffected by the heave of the hull, while the falling process is still affected by the movement of the hull. The complete operation of the crane includes lifting and delegating two processes, so existing technology only solves half of the problem

[0007] In summary, it is inappropriate to directly transfer the existing unit technology to offshore platform cranes

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